CN111917208A - Combined magnetic steel of tricycle driving motor and assembly process thereof - Google Patents
Combined magnetic steel of tricycle driving motor and assembly process thereof Download PDFInfo
- Publication number
- CN111917208A CN111917208A CN202010908106.7A CN202010908106A CN111917208A CN 111917208 A CN111917208 A CN 111917208A CN 202010908106 A CN202010908106 A CN 202010908106A CN 111917208 A CN111917208 A CN 111917208A
- Authority
- CN
- China
- Prior art keywords
- magnetic steel
- core
- rotor
- iron core
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 87
- 239000010959 steel Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical group [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 22
- 229910052782 aluminium Inorganic materials 0.000 description 22
- 230000006854 communication Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 230000009467 reduction Effects 0.000 description 11
- 239000000758 substrate Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 238000007726 management method Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000009194 climbing Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 230000005672 electromagnetic field Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000009499 grossing Methods 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention discloses combined magnetic steel of a tricycle driving motor and an assembly process thereof, wherein the motor comprises a stator assembly and a rotor assembly which are connected by electromagnetic induction, the rotor assembly comprises a rotor core and permanent magnetic steel, the rotor core is provided with a plurality of iron core grooves which are uniformly distributed at intervals in the first inner circumferential direction of the rotor core, a plurality of permanent magnetic steel units which are stacked and combined in parallel and in sections are embedded in each iron core groove, and the same magnetic poles between the adjacent permanent magnetic steel units in a single iron core groove are stacked and contacted; the thickness and the width of each permanent magnetic steel unit in the single iron core groove are equal; the tricycle driving motor has good temperature resistance, is easy to process and not easy to damage, and is beneficial to improving the working efficiency of the tricycle driving motor.
Description
Technical Field
The invention belongs to the field of electric vehicles, and particularly relates to combined magnetic steel of a tricycle driving motor and an assembly process of the combined magnetic steel.
Background
The tricycle has a large market application demand due to the fact that the tricycle has good loading capacity and has specific advantages compared with a two-wheeled vehicle. However, the driving technology adopted by the tricycle continues to use the traditional motor driving technology, and the innovative driving technology of the tricycle is hardly disclosed, particularly: the Hall sensor installed on the winding is adopted to carry out sensing detection of the position of the rotor, square wave control driving is adopted, and after the Hall sensor is used for a long time under the winding heating environment, the structure of the Hall sensor is easy to damage, so that a tricycle has high failure rate, and meanwhile, the existing control mode has poor speed-raising performance, low working efficiency of the motor and high cost.
The applicant has also paid particular attention to that a tricycle generally needs to have better loading capacity, and simultaneously has the using function of a two-wheeled vehicle, and the applied load range is very wide, so when the tricycle is used, the corresponding load range is wide and uncertain, so that the required tricycle motor needs to have excellent speed-up performance when being driven, and the existing tricycle driving control scheme is relatively lagged behind the recent technical development.
Therefore, based on the fact that the technical development team of the applicant concentrates on research and development experience and accumulated application data experience in the field of electric vehicle driving for many years, a systematic technical scheme is expected to be searched for to improve the technical level of tricycle driving and promote the application development of tricycles.
Disclosure of Invention
In view of this, the invention aims to provide a combined magnetic steel for a tricycle driving motor and an assembly process thereof, which have good temperature resistance, are easy to process and not easy to damage, and are beneficial to improving the working efficiency of the tricycle driving motor.
The technical scheme adopted by the invention is as follows:
a combined magnetic steel of a tricycle driving motor comprises a stator assembly and a rotor assembly which are connected through electromagnetic induction, wherein the rotor assembly comprises a rotor core and permanent magnet steel, the rotor core is provided with a plurality of iron core grooves which are uniformly distributed at intervals in the first inner circumferential direction of the rotor core, a plurality of permanent magnet steel units which are stacked and combined in parallel and in a segmented manner are embedded in each iron core groove, and the same magnetic poles between the adjacent permanent magnet steel units in a single iron core groove are stacked in a contact manner; and the thickness and the width of each permanent magnet steel unit in the single iron core groove are equal.
Preferably, the rotor core is provided with a plurality of first core chutes which are uniformly distributed at intervals in a first inner circumferential direction of the rotor core and a plurality of second core chutes which are uniformly distributed at intervals in the first inner circumferential direction of the rotor core, wherein an included angle is formed between the first core chute and the second core chute, the first core chute and the second core chute are alternately distributed in the first inner circumference, and a plurality of permanent magnet steel units which are stacked and combined in parallel and in a segmented manner are respectively embedded in the first core chute and the second core chute.
Preferably, the lengths of the permanent magnetic steel units are equal or unequal.
Preferably, the length-diameter ratio range of the permanent magnetic steel unit is 0.18-0.2; the thickness range of the permanent magnet steel unit is 1.1-2 mm.
Preferably, the length of the permanent magnetic steel unit ranges from 10 mm to 30 mm.
Preferably, the material of the permanent magnet steel unit is neodymium iron boron.
Preferably, 3-6 permanent magnet steel units are embedded in a single iron core groove.
Preferably, an assembling process of the combined magnetic steel includes the following assembling steps:
B10) sequentially inserting the required number of permanent magnet steel units into the iron core groove according to the length of the iron core groove, wherein each permanent magnet steel unit is in a parallel segmented stacked combined structure in the iron core groove, and the same magnetic poles between the adjacent permanent magnet steel units in the single iron core groove are in a contact stacked shape;
B20) a first baffle plate and a second baffle plate are coaxially arranged at two ends of the rotor iron core respectively, and insertion grooves among the first baffle plate, the rotor iron core and the second baffle plate are correspondingly matched respectively;
B30) through the cartridge cooperation of retaining member and each cartridge groove, with first baffle, rotor core and second baffle locking as an organic whole, can prevent because homopolar repulsion is popped out at the permanent magnetism magnet steel unit of single iron core inslot.
Preferably, the rotor core is provided with a plurality of insertion slots which are uniformly distributed at intervals in the second inner circumferential direction; the peripheries of the first baffle plate and the second baffle plate are both in a circular shape and are respectively arranged and distributed concentrically with the rotor core, meanwhile, the second inner circumference and the first inner circumference are distributed concentrically, and the outer diameters of the first baffle plate and the second baffle plate are both larger than the diameter of the first inner circumference.
Preferably, the rotor core comprises a plurality of rotor core punching sheets, wherein each rotor core punching sheet is provided with laminated grooves which are uniformly distributed at intervals in the third inner circumferential direction, and the rotor core punching sheets are locked and laminated into a whole through the insertion fit of fasteners and the laminated grooves; the laminating grooves and the inserting grooves are alternately distributed in the inner circumferential direction.
The application considers that the overlong permanent magnet steel in the rotor slot can cause the length-diameter ratio to be too small and the temperature resistance to be reduced; and permanent magnet steel overlength increases the processing degree of difficulty, the processing size is difficult for guaranteeing, permanent magnet steel overlength can lead to the area big simultaneously, permanent magnet steel is fragile, produce the negative effects to the electromagnetic induction effect, consequently, the combined type magnet steel scheme that a plurality of permanent magnet steel units that are parallel segmentation stack combination formed is further proposed, when in actual use, can equally divide into thickness, the width is equal with permanent magnet steel according to the length demand in iron core groove, and length equals or unequal segmentation permanent magnet steel unit, it is the contact form of stacking that the same magnetic pole of considering between adjacent permanent magnet steel unit in single iron core inslot is the repulsion effect of mutually taking place to further propose simultaneously, this application proposes to install locking baffle respectively additional at the rotor both ends, prevent that segmentation permanent magnet steel unit from being popped out.
Drawings
FIG. 1 is a flow chart of the control steps of the tricycle driving system in the embodiment 1 of the present application;
fig. 2 is a schematic structural view of a motor in embodiment 1 of the present application;
FIG. 3 is a schematic view of the structure of FIG. 2 in another orientation;
fig. 4 is an exploded view of the mounting structure of the encoder 2 in fig. 2;
FIG. 5 is an exploded view of FIG. 2;
FIG. 6 is a flow chart of the self-calibration control procedure of the encoder 2 in embodiment 2 of the present application;
fig. 7 is a schematic structural view of a rotor assembly 13 in embodiment 2 of the present application;
FIG. 8 is an exploded view of FIG. 7;
fig. 9 is a schematic structural view of a rotor core in embodiment 2 of the present application;
FIG. 10 is a schematic end view of the structure of FIG. 9;
fig. 11 is a flow chart of the assembly process steps of the combined magnetic steel in embodiment 2 of the present application;
FIG. 12 is an enlarged view of the structure of FIG. 10 at A;
fig. 13 is an exploded view of the circuit board in embodiment 4 of the present application;
fig. 14 is a schematic structural diagram of a circuit board (not shown with a bottom heat dissipation substrate) in embodiment 4 of the present application;
FIG. 15 is a schematic view of the structure of FIG. 14 in another orientation;
fig. 16 is an enlarged schematic view of the mounting structure of the MOS transistor on the over-current heat dissipation aluminum block;
fig. 17 is an exploded view of the mounting structure between the MOS transistor and the contact pad and the elastic pad;
FIG. 18 is a flow chart of the smoothing control step in embodiment 5 of the present application;
FIG. 19 is a schematic view showing communication connection between an encoder and each driver unit in embodiment 6 of the present application;
FIG. 20 is a block diagram showing a flow of a data determination control process of an encoder according to embodiment 6 of the present application;
fig. 21 is a schematic diagram of communication connection of an encoder in security management in embodiment 6 of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the embodiment provides a tricycle driving system with low failure rate, which comprises a motor 1 on a tricycle frame (applying a known tricycle structure) and a driver for controlling the driving operation of the motor 1, wherein the motor 1 comprises an encoder 2 arranged on a motor shaft 11, so that the failure rate can be obviously reduced; the encoder 2 is in communication connection with the driver, the encoder 2 sends the detected rotor position signal to the driver, and the driver performs sine wave driving control on the motor based on the rotor position signal, so that the driving precision of a tricycle driving system can be remarkably improved, and fine control is realized; referring to fig. 1, the control steps of the present embodiment include:
s10), when the driver receives the rotor position real-time signal output by the encoder 2, the driver carries out filtering processing on the rotor position real-time signal and sets the current angle value ThetViL 1;
s20), performing deviation value comparison on the current angle value ThetViL1 and the angle value ThetViLast of the previous period, and assigning the current sine wave control actual angle value ThetResult according to the deviation value comparison result; preferably, in this step 20), when the deviation value does not exceed a preset maximum deviation value (it may be enough that the actual control accuracy needs to be specifically set), assigning the current angle value ThetViL1 to the current sine wave control actual angle value ThetResult; when the deviation value exceeds a preset maximum deviation value, assigning the preset maximum angle value to the current sine wave control actual angle value ThetResult to avoid the current fluctuation of the motor;
s30), the driver controls the actual angle value ThetResult to start and control the motor 1 according to the sine wave.
Preferably, referring to fig. 2, fig. 3 and fig. 4, in the present embodiment, the motor 1 includes a stator assembly 12 and a rotor assembly 13 connected by electromagnetic induction, and the rotor assembly 13 is fixedly integrated with the motor shaft 11; the encoder 2 adopts an inductive position encoder and comprises an encoder rotating module 21 and an encoder stator module 22 which are connected through electromagnetic induction, wherein the encoder rotating module 21 is fixedly installed on the motor shaft 11, the encoder stator module 22 is fixedly installed at one end of the stator assembly 20 and is in communication connection with the driver, a rotor position signal obtained through calculation is sent to the driver, the rotor position signal has high precision and high resolution, the purposes of starting and stopping the motor 1, controlling the speed, monitoring the power density and the like can be accurately realized, and the encoder is suitable for working under various severe environmental conditions including a humid, muddy and dusty working environment;
preferably, in the present embodiment, the stator assembly 12 is located at the outer periphery of the rotor assembly 13 (i.e. an inner rotor motor), and in other embodiments, an outer rotor motor may also be used; more preferably, in this embodiment, the encoder rotation module 21 is provided with a rotation module printed circuit board (not specifically shown), the rotation module printed circuit board is provided with a conductive material scale area (a specific scale value is selected according to actual needs), the encoder stator module 22 is provided with a stator module printed circuit board (not specifically shown), the stator module printed circuit board is provided with an excitation coil for generating an electromagnetic field, a receiving coil for receiving induced electromotive force, and a processing chip, wherein the conductive material scale area is used for influencing the coupling relationship between the excitation coil and the receiving coil, and the excitation coil generates an alternating magnetic field strength to change the induced electromotive force on the receiving coil; when the encoder rotation module 21 rotates one circle relative to the encoder stator module 22, the receiving coil obtains a plurality of periodic receiving signals, and the receiving signals are calculated and processed by the processing chip and then output rotor position signals to the driver;
in this embodiment, the rotor assembly 13 includes a permanent magnet steel 13a, when the permanent magnet steel 13a rotates, the N, S magnetic pole of the permanent magnet steel 13a makes the conductive material scale region generate an eddy current field for weakening the intensity of the alternating electromagnetic field of the excitation coil, which is beneficial to the formation of the alternating electromagnetic field; the processing chip is matched with the exciting coil to generate high-frequency periodic alternating voltage and current, and alternating current flowing through the exciting coil forms an alternating electromagnetic field in the peripheral region of the alternating current; when an alternating electromagnetic field generated on an exciting coil passes through a receiving coil, the magnetic flux of the receiving coil is alternated, so that alternating induced electromotive force with the same frequency is generated on each receiving coil;
particularly preferably, in the present embodiment, the receiving coils are annularly spaced on the rotating module printed circuit board; all conductive materials on the conductive material scale area are distributed on the rotating module printed circuit board at intervals in a ring shape;
on the basis of referring to fig. 2, fig. 3 and fig. 4, and further referring to fig. 5, the present embodiment further preferably provides a convenient mounting structure of the encoder 2, wherein the encoder rotating module 21 is sleeved on the encoder mounting sleeve 23, and the encoder mounting sleeve 23 is fixedly mounted on the motor shaft 11; the encoder stator module 22 is fixedly installed on the motor end cover through an encoding installation disc 24; preferably, in this embodiment, the stator assembly 12 is provided with a heat dissipation mounting cylinder 15 at the periphery thereof, the heat dissipation mounting cylinder 15 is cast or machined by an aluminum profile, and is provided with a plurality of heat dissipation fins 15 a; the two ends of the heat dissipation installation cylinder 15a are fixedly provided with a first motor end cover 14a and a second motor end cover 14b respectively; the coding installation disc 24 is fixedly installed on the second motor end cover 14b, and a fan 16 for motor heat dissipation is fixedly installed on the motor shaft 11 positioned on the outer side of the coding installation disc 24;
preferably, in the present embodiment, the encoder mounting sleeve 23 is mounted and connected with the motor shaft 11 through a flat key or an interference fit or a shrink fit or a spline; meanwhile, the encoder stator module 22 is provided with a guide mounting hole 22a, and the outer periphery of the encoder mounting sleeve 23 is inserted in the guide mounting hole 22a in a clearance manner;
preferably, in the present embodiment, the encoder mounting plate 24 is relatively selectively sleeved on the motor shaft 11 through a bearing 25, and the encoder stator module 22 is installed between the second motor end cover 14b and the encoder mounting plate 24; the encoder stator module 22 is fixedly mounted on the encoding mounting disc 24 through a screw fastener, and the encoding mounting disc 24 is fixedly mounted on the second motor end cover 14b through a screw fastener;
preferably, in this embodiment, the heat dissipation mounting cylinder 15 is provided at the periphery thereof with mounting grooves 15b spaced apart from each other, and each mounting groove 15b is used for fixing and mounting the heat dissipation mounting cylinder 15, the first motor end cap 14a and the second motor end cap 14b into a whole by inserting a screw fastener 17, so that the heat dissipation mounting cylinder 15 of this embodiment is not only beneficial to the external protection effect of the motor 1 in high-speed operation, but also can be matched with the fan 16 to work, thereby achieving the rapid heat dissipation effect of the motor 1.
On one hand, the encoder rotating module 21 is sleeved on the encoder mounting sleeve 23, and is quickly and fixedly arranged on the motor shaft 11 through the encoder mounting sleeve 23; on the other hand, encoder stator module 22 passes through the fixed installation of code mounting disc 24 on second motor end cover 14b, and encoder stator module 22 is located between code mounting disc 24 and second motor end cover 14b, and the installation is firm reliable, is difficult for receiving external force and damages, avoids breaking down.
Example 2: on the basis of the tricycle driving system provided in embodiment 1, this embodiment 2 further provides a self-calibration control method of the encoder 2, where the encoder 2 uses an inductive position encoder to detect a rotor position signal in real time; before the motor 1 is used, the encoder 2 performs a self-calibration control in advance, wherein, referring to fig. 6, the operation steps of the self-calibration control include:
A10) electrifying the motor 1 provided with the encoder 2, and enabling the motor 1 to be in a stable constant-speed rotation state through external force, preferably, in the step A10), setting the rotation speed range of the motor 1 to be 20-80% of the rated rotation speed when the motor is normally driven;
A20) adjusting an original sine and cosine signal of an induction coil inside the encoder 2, and adjusting an output amplitude of the encoder based on the original sine and cosine signal, so that the original sine and cosine signal of the encoder 2 in each period (a calculation period can be usually set to a microsecond level, for example, set to 50-100 microseconds) reaches a uniform output amplitude; preferably, in this embodiment, the receiving coil is used as an induction coil, and the induced electromotive force signal is used as an original sine and cosine signal; after the encoder rotating module rotates for one circle relative to the encoder stator module, the receiving coil obtains original sine and cosine signals of a plurality of periods, and the original sine and cosine signals are calculated, processed and adjusted through the processing chip, so that the original sine and cosine signals of the encoder in each period reach a unified output amplitude;
A30) and processing and calculating the output amplitude signal to be used as a zero calibration signal of the rotor position and sending the zero calibration signal to a driver.
A40) Storing the output amplitude signal in the encoder 2; particularly preferably, in this step a40), the encoder 2 is provided with a self-calibration key, which is pressed to send an instruction to the encoder 2 to store the output amplitude signal.
Through the encoder self-calibration control scheme provided by the embodiment, the rotor real-time position can be accurately detected, and the accurate driving effect of the tricycle driving system can be finally ensured.
Example 3: on the basis of the embodiment 1 and the embodiment 2, the embodiment further provides a high-efficiency tricycle driving system, the motor 1 adopts a salient pole permanent magnet synchronous motor beneficial to flux weakening control, the stator assembly 12 comprises a stator core (not shown) and a winding (not shown), and the rotor assembly 13 comprises a rotor core 13b and permanent magnet steel 13 a; the speed regulation range of the salient pole permanent magnet synchronous motor is improved by carrying out field weakening control on the salient pole permanent magnet synchronous motor, and the torque of the salient pole permanent magnet synchronous motor is improved by improving the number of turns of a coil of a single winding, wherein the speed regulation range of the salient pole permanent magnet synchronous motor is 0-2000 rpm;
preferably, in the present embodiment, referring to fig. 7, 8, 9 and 10, the rotor core 13b is provided with a plurality of first core chutes 31 uniformly spaced in the first inner circumferential direction thereof and a plurality of second core chutes 32 uniformly spaced in the first inner circumferential direction thereof, wherein the first core chutes 32 and the second core chutes 32 have an included angle therebetween (in the present embodiment, the first core chutes 31 respectively have a first included angle a1 ═ 37 ° and a second included angle a2 ═ 73 °); the first inner circumference is distributed alternately, and the permanent magnet steel 13b is embedded in the first iron core chute 31 and the second iron core chute 32 respectively, so that high-power weak magnetic control is facilitated, and demagnetization is not easy to occur;
preferably, the embodiment provides a combined magnetic steel of a tricycle driving motor, the permanent magnetic steel 13b positioned in each iron core chute 31, 32 adopts a plurality of permanent magnetic steel units 33 which are stacked and combined in parallel and in a segmented manner, the stacking number of the permanent magnetic steel units 33 is selected according to the length of the iron core chute 31, 32 where the permanent magnetic steel units are positioned, and the same magnetic poles between the adjacent permanent magnetic steel units 33 in the single iron core chute 31, 32 are stacked in a contact manner; the thickness and the width of each permanent magnetic steel unit 33 in the single iron core chute 31, 32 are equal, and the length of each permanent magnetic steel unit 33 is equal or unequal;
preferably, in this embodiment, the length-diameter ratio of the permanent magnetic steel unit 33 is in a range of 0.18-0.2, the thickness of the permanent magnetic steel unit 33 is in a range of 1.1-2mm, and the material of the permanent magnetic steel unit 33 is neodymium iron boron; in the present embodiment, the preferable scheme of the permanent magnetic steel unit 33 can be directly referred to the patent document of the prior application CN208539674U of the present applicant, and the present embodiment is not specifically described; further preferably, in the present embodiment, the lengths of the permanent magnet steel units 33 are equal, the length range is 10-30mm, 3-6 permanent magnet steel units 33 are embedded in the single iron core chutes 31, 32, specifically, the length L of the iron core chutes 31, 32 is about 87-90mm, and 5 permanent magnet steel units 33 with equal lengths are respectively embedded;
further preferably, in the present embodiment, the rotor core 13b is provided with a plurality of insertion slots 34 uniformly distributed at intervals in the second inner circumferential direction, both ends of the rotor core 13b are respectively provided with a first baffle 35a and a second baffle 35b, and each insertion slot 34 locks and installs the rotor core 13b with the first baffle 35a and the second baffle 35b into a whole through an insertion locking member 36; wherein, the first baffle 35a and the second baffle 35b contact at least the surface area covering part of the iron core chutes 31, 32, and are used for preventing the permanent magnetic steel units 33 in the iron core chutes 31, 32 from being ejected due to the repulsion of like poles; specifically, in the present embodiment, the outer circumferences of the first baffle plate 35a and the second baffle plate 35b are both circular and are arranged concentrically with the rotor core 13b, respectively, while the second inner circumference is arranged concentrically with the first inner circumference, wherein the outer diameters of the first baffle plate 35a and the second baffle plate 35b are both larger than the diameter of the first inner circumference, specifically, in the present embodiment, the outer diameters of the first baffle plate 35a and the second baffle plate 35b are equal and are both about 70mm, and the diameter of the first inner circumference is about 58 mm.
Preferably, in the present embodiment, the rotor core 13b includes a plurality of rotor core stamped sheets, wherein each rotor core stamped sheet is provided with laminated slots 37 uniformly distributed at intervals in a third inner circumferential direction, and the rotor core stamped sheets are locked and laminated into a whole through the insertion and matching of the fasteners 37a and the laminated slots 37; the laminated grooves 37 and the insertion grooves 34 are alternately distributed in the inner circumferential direction, and specifically, the outer diameter of the third inner circumference is about 56 mm;
as shown in fig. 11, the present embodiment further provides an assembling process of the combined magnetic steel, including the following steps:
B10) the required number of permanent magnet steel units are sequentially inserted into the iron core slots according to the lengths of the iron core chutes 31 and 32, each permanent magnet steel unit is in a parallel segmented stacking combined structure in the iron core chutes 31 and 32, and the same magnetic poles between the adjacent permanent magnet steel units 33 in the single iron core slots 31 and 32 are in a contact stacking shape;
B20) a first baffle 35a and a second baffle 35b are coaxially arranged at two ends of the rotor iron core 13b respectively, and the insertion slots 34 among the first baffle 35a, the rotor iron core 13b and the second baffle 35b are correspondingly matched respectively;
B30) the first baffle 35a, the rotor core 13b and the second baffle 35b are locked into a whole through the insertion and matching of the locking piece 36 and each insertion slot 34, and the permanent magnet steel units 33 in the single core chutes 31 and 32 can be prevented from being ejected due to the repulsion of like poles.
Preferably, in the present embodiment, referring to fig. 12, the rotor core 13b includes a plurality of main arc-shaped rotor core segments 38 and a plurality of inner curved rotor core segments 39, and the main arc-shaped rotor core segments 38 and the inner curved rotor core segments 39 are alternately integrated or separately connected to each other to form a closed arc shape, which is beneficial to the field weakening effect of the motor 1; particularly preferably, in the present embodiment, the inner bending type rotor core section 39 serves as a connecting section between the first core chute 31 and the second core chute 32, and the center line of the inner bending type rotor core section 39 coincides with the center line between the first core chute 31 and the second core chute 32.
Example 4: the drivers of the tricycle driving systems in the embodiments 1, 2 and 3 respectively comprise a circuit board 4 provided with a plurality of MOS tubes 41; the specific number and distribution of the MOS transistors 41 on the circuit board and the arrangement of the plurality of capacitor devices 42 on the circuit board 4 according to actual needs are common knowledge and conventional technical means in the field of drive control, and therefore, for the specific hardware structure design of the circuit board 4, the detailed description of the embodiment is not repeated;
referring to fig. 13, 14, 15, 16 and 17, in this embodiment 4, a circuit board 4 with a high heat dissipation effect is provided, one side of each of the pins of the MOS transistor 41 is welded on the circuit board 4, and meanwhile, the output end of the other side of the MOS transistor 41 is fixedly mounted on an over-current heat dissipation aluminum block 45 (which may be a strip, a block or another special shape, but is not particularly limited in this embodiment) through a fastener 43 sleeved with an elastic gasket and is electrically connected to the over-current heat dissipation aluminum block 45, and the over-current heat dissipation aluminum block 45 is fixedly mounted on the circuit board 4 and is in insulation contact with the outside; preferably, in the present embodiment, the fastening piece 43 is respectively sleeved with a contact pad 44a and an elastic pad 44b, the output end of the other side of the MOS transistor 41 is provided with an insertion hole 41a, the fastening piece 43 penetrates through the insertion hole 41a and then is fastened, installed and connected with the over-current heat dissipation aluminum block 45, wherein the elastic pad 44b and the contact pad 44a are sequentially arranged between the end of the fastening piece 43 and the over-current heat dissipation aluminum block 45, and the contact pad 44a is in contact connection with the over-current heat dissipation aluminum block 45; particularly preferably, in the present embodiment, the gate pin 41b and the source pin 41c of the MOS transistor 41 are respectively soldered on the circuit board 4, and the output terminal on the other side of the MOS transistor 41 is a MOS transistor drain, and the MOS transistor drain 41d is provided with an insertion hole 41 a;
preferably, in the present embodiment, the circuit board 4 is mounted on a bottom heat dissipation substrate 46 having a plurality of heat dissipation fins 46a in an insulating manner, the over-current heat dissipation aluminum block 45 is integrally mounted and connected with the bottom heat dissipation substrate 46 through an insulating fastening kit 47, and an insulating adhesive layer (not shown) is disposed between the over-current heat dissipation aluminum block 45 and the bottom heat dissipation substrate 46; an aluminum block heat dissipation boss 46b corresponding to the over-current heat dissipation aluminum block 45 is arranged on the bottom heat dissipation substrate 46, an aluminum block through window 48 for penetrating through the aluminum block heat dissipation boss 46b is arranged on the circuit board 4, and the aluminum block heat dissipation boss 46b penetrates through the aluminum block limiting window 48 and then is in insulation contact with the corresponding over-current heat dissipation aluminum block 45.
Preferably, in the present embodiment, the over-current heat dissipation aluminum block 45 is fixedly mounted on the circuit board 4 and the bottom heat dissipation substrate 46 by fasteners distributed in a triangular shape, and particularly preferably, in the present embodiment, the fasteners include insulating fastening kits 47 (screw fasteners sleeved with insulating sleeves), and in order to ensure fastening mounting effect, some of the fasteners further include insulating mounting gaskets 47a in fastening fit with corresponding ones of the fasteners.
Preferably, in the present embodiment, the height of the over-current heat dissipation aluminum block 45 is 15-25mm, and the maximum thickness of the bottom heat dissipation substrate 46 (including the heat dissipation reinforcing rib 31) is 25-35 mm; the circuit board 4 adopts a PCB, and the bottom radiating substrate 46 adopts an aluminum radiating substrate, so that the quick radiating effect is facilitated;
preferably, in the present embodiment, the bottom heat dissipation substrate 46 is provided with a limiting groove 46c for limiting the placement of the circuit board 4, and an insulating silica gel ring 49 is clamped on the periphery of the limiting groove 46 c.
The integral installation structure of the embodiment is simple and convenient for dismounting the MOS tube 41, and meanwhile, the over-current heat dissipation aluminum block 45 is not only used as a power-running installation device of the MOS tube 41, but also used as a rapid heat dissipation contact structure of the MOS tube 41, so that on the basis of realizing large-current connection of the MOS tube 41 (about 75A), consumption of a thick copper plate is avoided, the structure cost is low, and a good heat dissipation effect is achieved; this application further proposes to install circuit board 4 on bottom heat dissipation base plate 46 with insulating, and the heat conduction contact is cut at the border between bottom heat dissipation base plate 46 and the electricity mistake heat dissipation aluminium pig 45, further does benefit to circuit board 4's radiating effect.
The embodiment also provides a tricycle which is driven to operate by the tricycle driving system, and the circuit board of the tricycle driving system adopts the circuit board 4.
Example 5: the other technical solutions of this embodiment are the same as those of embodiments 1 to 4, except that this embodiment proposes an automatic speed regulation control method of a tricycle driving system, where the tricycle driving system includes a motor (whose speed regulation range is 0 to 2000 rpm) on a tricycle frame and a driver for controlling the driving operation of the motor 1, the tricycle driving system is provided with an automatic gear shifting device in communication connection with the driver, and an output end of the automatic gear shifting device is in transmission connection with rear wheels of a tricycle; the automatic gear shifting device is provided with a low-speed reduction ratio gear P1 and a high-speed reduction ratio gear P2, whether the automatic gear shifting device needs to shift gears is judged through a driver based on the running condition of the tricycle, and meanwhile, the driver smoothly controls the motor 1 in the gear shifting process of the automatic gear shifting device, so that the tricycle can be prevented from shaking or bruising during running;
preferably, in the present embodiment, please refer to fig. 18, the smoothing control includes the following control procedures:
C10) the driver confirms a gear shifting demand signal sent by the automatic gear shifting device;
C20) the driver takes the state that the automatic gear shifting device is in a neutral gear P0 as a gear shifting condition, and controls and adjusts the rotating speed of the motor to a target rotating speed based on the detected rotating speed of the rear wheels and a gear shifting demand signal after the gear shifting condition is judged to be reached;
C30) and the automatic gear shifting device executes gear shifting demand.
In the present embodiment, the shift demand includes a high-Speed shift demand to shift the low Speed reduction gear P1 to the high Speed reduction gear P2, the target rotation Speed of the motor 1TargetCurrent Speed of the motorAt present(1/P2)/(1/P1), and a low shift request for shifting the high Speed reduction gear P2 to the low Speed reduction gear P1, a target rotational Speed of the motorTargetCurrent Speed of the motorAt present(1/P1)/(1/P2); after receiving the gear shifting demand signal, the driver adjusts the motor speed to the target speed within 0.6-3 seconds, and particularly preferably, the gear shifting time is controlled to be completed within 1 second;
preferably, in the present embodiment, the driver determines whether the driving condition of the tricycle is in a climbing driving state or a flat driving state based on the input real-time changes of the motor speed, the motor phase line current and the vehicle bus current; when the grade climbing driving state is switched into the grade climbing driving state, the automatic gear shifting device is judged to need low-speed gear shifting, and when the grade climbing driving state is switched into the grade climbing driving state, the automatic gear shifting device is judged to need high-speed gear shifting;
specifically, the present embodiment further illustrates a specific automatic shift process:
in the present embodiment, P1 is 1:30, P2 ═ 1: 10; the driver receives a rear wheel rotating speed signal from the automatic transmission device, the driver outputs a judgment signal needing gear shifting to a relay switch of the automatic gear shifting device, and the automatic gear shifting device switches into a neutral gear P0 state after receiving the judgment signal needing gear shifting and sends a gear shifting demand signal to the driver:
when the gear shifting requirement is a high-speed gear shifting requirement, and the rear wheel is detectedThe rotating speed is more than 10km/h, after a gear shifting condition is achieved, the current rotating speed of the motor 1 is 600r/min, the reduction ratio of P1 to 1:30 shows that the rotating speed of rear wheels is 20r/min, if the direct gear shifting is carried out, the reduction ratio is P2 to 1:10, the rotating speed of the rear wheels is switched to 600/10 to 60r/min, compared with 20r/min before gear shifting, the rotating speed has larger change, and the obvious pause and shake are shown when a tricycle is ridden on the whole vehicle: therefore, the smoothing control process as described above is implemented, wherein in step C20), the PWM duty ratio of the driver (the period of the open/close pipe can be driven according to different rotation speeds) is reduced by looking up the table by the driver software, so that the motor Speed is reduced to the target rotation SpeedTarget＝600r/min*(1/P2)/(1/P1)＝200r/min；
When the gear shifting requirement is a low-speed gear shifting requirement, and detection shows that the rotating speed of the rear wheels is less than 5km/h, after the gear shifting condition is met, the current rotating speed of the motor 1 is 300r/min, the reduction ratio of P2 ═ 1:10 shows that the rotating speed of the rear wheels is 30r/min, if the speed reduction ratio is directly switched to the low-speed gear, the reduction ratio is P1 ═ 1:30, the rotating speed of the rear wheels is switched to 300 ÷ 30 ÷ 10r/min, compared with 30r/min before gear shifting, the rotating speed has large change, and shows that obvious suspension feeling and shaking of riding are generated on the whole tricycle: therefore, the smoothing control process as described above is implemented, wherein, in step C20), the motor Speed is increased to the target rotation Speed by looking up the table by the driver software, increasing the PWM duty ratio of the driver according to the time function by looking up the table by the driver software, andtarget＝300r/min*(1/P1)/(1/P2)＝900r/min。
Example 6: the remaining technical solutions of this embodiment are the same as those of embodiments 1 to 5, except that this embodiment proposes an encoder control method of a multi-module driving system (see CN109245343A for a specific technical solution); referring to fig. 19, the multi-module driving system includes a three-phase ac motor having a plurality of winding units, and a plurality of driver units (including a first driver unit, a second driver unit … …, the nth driver unit, and the driver units are connected in communication with each other), each driver unit being configured to perform operation control on the corresponding winding unit, the three-phase ac motor (also a salient pole permanent magnet synchronous motor) including an encoder mounted on a motor shaft; the encoder control method includes: the first driver unit is used as a bidirectional communication data connection between a main driver and an encoder, the main driver sends a starting and/or stopping signal to the encoder, and the encoder sends a rotor position signal to the main driver; the other driver units are in one-way communication data connection with the encoder and used for receiving rotor position signals output by the encoder; the failure rate is low, and the data communication management correspondingly applied to the multi-module driving system is realized;
preferably, in this embodiment, the communication data connection mode adopts a wired communication mode (e.g., uart or can) and/or a wireless communication mode (e.g., bluetooth, GPRS, WIFI).
In view of compatible use with a multi-module driving system with hall assemblies installed, preferably, in the present embodiment, part or all of the winding units are provided with hall assemblies, and the hall assemblies are in data communication connection with their corresponding driver units; the driver unit is respectively provided with an encoder interface for accessing a first rotor position signal and an HALL interface (for accessing a Hall assembly signal of a corresponding winding unit) for accessing a second rotor position signal; referring to fig. 20, the encoder control method of the present embodiment further includes the following data determination control process:
D10) when the driver unit receives a first rotor position signal output by the encoder and/or a second rotor position signal output by the Hall assembly;
D20) judging whether the first rotor position signal data are matched or not by the driver unit according to the back electromotive force of the winding unit corresponding to the driver unit, if so, entering a step D30), and if not, entering a step D40);
D30) the driver unit controls the operation of the corresponding winding unit based on the first rotor position signal;
D40) judging whether the driver unit judges whether the second rotor position signal data are matched according to the back electromotive force of the corresponding winding unit, if so, entering a step D50), and if not, judging that the multi-module driving system has a fault;
D50) and the driver unit controls the operation of the corresponding winding unit based on the second rotor position signal.
According to the embodiment, through the data judgment control process, the universality of the multi-module driving system is good, and the fault occurrence rate of the multi-module driving system can be further reduced.
Considering that the multi-module driving system of the present embodiment has a plurality of driver units, in order to avoid many potential safety hazards caused by manual non-compliance procedures or illegal disassembly and assembly, and to improve the anti-theft performance, preferably, on the basis of the above-mentioned encoder control method, please refer to fig. 21, the present embodiment further provides an encoder safety management method for a multi-module driving system, where the encoder adopts handshake identification safety management, including: before the multi-module driving system is started, one-way handshake signals are sent to a main driver in advance, and after the main driver identifies the one-way handshake signals and sends the handshake signals back to an encoder, it is judged that each driver unit can enter the starting work; when the main driver can not send back the handshake signal, judging that the driver units are not matched with the encoders, and stopping inputting the rotor position signal to each driver unit; through this signal management of shaking hands, can carry out quick verification to the encoder before the motor starts with the matching of each driver unit, can start through verifying the rear, has promoted this embodiment multimode actuating system's safety management level effectively.
It should be noted that the multi-module driving system encoder control method and the safety management method thereof proposed in embodiment 6 can be used as a driving system of an electric two-wheel vehicle or an electric three-wheel vehicle, and can also be used in other driving applications requiring large power (the output power range of a three-phase ac motor is 500W-20KW), and the embodiment is not particularly limited.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The combined magnetic steel of a tricycle driving motor comprises a stator assembly and a rotor assembly which are connected through electromagnetic induction, wherein the rotor assembly comprises a rotor core and permanent magnet steel; and the thickness and the width of each permanent magnet steel unit in the single iron core groove are equal.
2. The combined magnetic steel of claim 1, wherein the rotor core has a plurality of first core chutes uniformly spaced along a first inner circumferential direction thereof and a plurality of second core chutes uniformly spaced along the first inner circumferential direction thereof, wherein the first core chutes and the second core chutes have an included angle therebetween and are alternately disposed along the first inner circumference, and the first core chutes and the second core chutes are respectively embedded with a plurality of permanent magnetic steel units stacked and combined in parallel segments.
3. The combined magnetic steel of claim 1 or 2, wherein the permanent magnetic steel units have equal lengths or unequal lengths.
4. The combined magnetic steel of claim 1 or 2, wherein the length-diameter ratio of the permanent magnetic steel unit is in the range of 0.18-0.2; the thickness range of the permanent magnet steel unit is 1.1-2 mm.
5. The combined magnetic steel of claim 1 or 2, wherein the length of the permanent magnetic steel unit is in the range of 10-30 mm.
6. The combined magnetic steel of claim 1 or 2, wherein the material of the permanent magnetic steel unit is neodymium iron boron.
7. The combined magnetic steel of claim 1 or 2, wherein 3-6 permanent magnetic steel units are embedded in a single core slot.
8. An assembly process of the combined magnetic steel according to any one of claims 1 to 7, characterized by comprising the following assembly steps:
B10) sequentially inserting the required number of permanent magnet steel units into the iron core groove according to the length of the iron core groove, wherein each permanent magnet steel unit is in a parallel segmented stacked combined structure in the iron core groove, and the same magnetic poles between the adjacent permanent magnet steel units in the single iron core groove are in a contact stacked shape;
B20) a first baffle plate and a second baffle plate are coaxially arranged at two ends of the rotor iron core respectively, and insertion grooves among the first baffle plate, the rotor iron core and the second baffle plate are correspondingly matched respectively;
B30) through the cartridge cooperation of retaining member and each cartridge groove, with first baffle, rotor core and second baffle locking as an organic whole, can prevent because homopolar repulsion is popped out at the permanent magnetism magnet steel unit of single iron core inslot.
9. An assembly process for combined magnetic steel as claimed in claim 8, wherein the rotor core has a plurality of slots spaced uniformly in the second inner circumferential direction; the peripheries of the first baffle plate and the second baffle plate are both in a circular shape and are respectively arranged and distributed concentrically with the rotor core, meanwhile, the second inner circumference and the first inner circumference are distributed concentrically, and the outer diameters of the first baffle plate and the second baffle plate are both larger than the diameter of the first inner circumference.
10. The assembly process of combined magnetic steel according to claim 9, wherein the rotor core includes a plurality of rotor core stamped pieces, wherein each rotor core stamped piece is provided with laminated grooves evenly distributed at intervals in a third inner circumferential direction, and the rotor core stamped pieces are locked and laminated into a whole through insertion and matching of fasteners and the laminated grooves; the laminating grooves and the inserting grooves are alternately distributed in the inner circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908106.7A CN111917208A (en) | 2020-09-02 | 2020-09-02 | Combined magnetic steel of tricycle driving motor and assembly process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908106.7A CN111917208A (en) | 2020-09-02 | 2020-09-02 | Combined magnetic steel of tricycle driving motor and assembly process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111917208A true CN111917208A (en) | 2020-11-10 |
Family
ID=73266166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010908106.7A Pending CN111917208A (en) | 2020-09-02 | 2020-09-02 | Combined magnetic steel of tricycle driving motor and assembly process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111917208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117550050A (en) * | 2023-11-15 | 2024-02-13 | 德州市等磁科技有限公司 | Intelligent regulation type marine propulsion device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN105305685A (en) * | 2015-11-24 | 2016-02-03 | 南京埃斯顿自动控制技术有限公司 | Permanent magnet synchronous direct-drive motor |
| CN106911205A (en) * | 2017-03-08 | 2017-06-30 | 沈阳远大科技电工有限公司 | Spliced rotor permanent magnet synchronous motor |
| CN208539674U (en) * | 2018-07-09 | 2019-02-22 | 无锡赛盈动力科技有限公司 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
| CN208835864U (en) * | 2018-10-18 | 2019-05-07 | 北京佩特来电机驱动技术有限公司 | A kind of electric drive motor and its wheel hub rotor assembly |
| CN110601398A (en) * | 2019-08-14 | 2019-12-20 | 浙江大学 | Magnetic pole fixing device and magnetic pole module installation method thereof |
| CN210839108U (en) * | 2019-12-12 | 2020-06-23 | 无锡市亨达电机有限公司 | Processing-free rotor structure |
| CN111600409A (en) * | 2020-06-15 | 2020-08-28 | 中车株洲电机有限公司 | Rotor core and motor |
-
2020
- 2020-09-02 CN CN202010908106.7A patent/CN111917208A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN105305685A (en) * | 2015-11-24 | 2016-02-03 | 南京埃斯顿自动控制技术有限公司 | Permanent magnet synchronous direct-drive motor |
| CN106911205A (en) * | 2017-03-08 | 2017-06-30 | 沈阳远大科技电工有限公司 | Spliced rotor permanent magnet synchronous motor |
| CN208539674U (en) * | 2018-07-09 | 2019-02-22 | 无锡赛盈动力科技有限公司 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
| CN208835864U (en) * | 2018-10-18 | 2019-05-07 | 北京佩特来电机驱动技术有限公司 | A kind of electric drive motor and its wheel hub rotor assembly |
| CN110601398A (en) * | 2019-08-14 | 2019-12-20 | 浙江大学 | Magnetic pole fixing device and magnetic pole module installation method thereof |
| CN210839108U (en) * | 2019-12-12 | 2020-06-23 | 无锡市亨达电机有限公司 | Processing-free rotor structure |
| CN111600409A (en) * | 2020-06-15 | 2020-08-28 | 中车株洲电机有限公司 | Rotor core and motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117550050A (en) * | 2023-11-15 | 2024-02-13 | 德州市等磁科技有限公司 | Intelligent regulation type marine propulsion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1078765C (en) | Auxiliary power motor with improved structure | |
| CN1313211C (en) | Switched reluctance machine and food waste disposer employing same | |
| JP4547259B2 (en) | Rotating electric machine | |
| JP5662870B2 (en) | Engine generator start control device | |
| CN1897447A (en) | Ac motor driving apparatus and method of controlling the same | |
| CN1314745A (en) | Vector control method for synchronous magneto-resistance motor | |
| JP5216449B2 (en) | Motor control device, power conversion device, and hybrid vehicle | |
| CN101030712A (en) | Low-speed DC direct-driven brushless motor with segmented modularized stator structure | |
| JP2009284726A (en) | Motor for motor driven two-wheeler | |
| CN108702038B (en) | Disc motor, electric vehicle and control method thereof | |
| JP3675171B2 (en) | Electric motor control device and control method | |
| CN103023259A (en) | Wheel hub motor and control method thereof | |
| CN111917208A (en) | Combined magnetic steel of tricycle driving motor and assembly process thereof | |
| CN213151842U (en) | Convenient mounting structure of encoder | |
| CN213151934U (en) | Tricycle actuating system of low fault rate | |
| CN112072960B (en) | Automatic speed regulation control method of tricycle driving system | |
| CN213151741U (en) | High-efficient tricycle actuating system | |
| CN112072965B (en) | Encoder control method and safety management method of multi-module driving system | |
| CN112072964B (en) | Self-calibration control method of encoder and tricycle driving system thereof | |
| CN112087170B (en) | Tricycle actuating system of low fault rate | |
| CN112087083B (en) | High-efficient tricycle actuating system | |
| CN212935600U (en) | Low-noise high-efficiency salient pole motor and tricycle using same | |
| CN1862928A (en) | Modularized stator structure low-speed DC brushless motor | |
| CN111885902A (en) | Tricycle actuating system circuit board with high-efficient radiating effect and tricycle thereof | |
| CN104185939B (en) | Electrically driven (operated) two-wheel car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |